Toothed coupling

A toothed coupling and in particular a double toothed coupling for rail vehicles, essentially consisting of a coupling housing (2;

• 5, 6) and at least one coupling component fitted inside the coupling housing (2;
• 5, 6), the coupling component (3, 4) has second teeth or third teeth (9, 10) in its peripheral region (7) and the coupling housing (2;
• 5, 6) has first teeth (11, 12) in its peripheral region which form engaging teeth (13, 14) with the second teeth and third teeth (9, 10) of the coupling component which teeth (9, 10;
• 10, 12) are movable in relation to one another, and there is at least one annular disk-shaped support cover (21, 22) protecting the engaging teeth (13, 14) at the respective faces (19, 20) between the coupling housing (2;
• 5, 6) and the coupling component (3, 4), wherein there is at least one axial corrugated pipe (18, 47) positioned between the coupling housing (2;
• 5, 6) and each coupling component (3, 4) secured to at least one of both parts (2, 3;
• 2, 4 or 5, 3;
• 6, 4) which seals engaging teeth within a fluid chamber (13, 14) and also resiliently sets a predetermined position of the coupling housing (2;
• 5, 6).

A toothed coupling for rail vehicles, essentially consisting of

• a coupling housing and having a first peripheral region;
• a coupling component fitted inside the coupling housing and having a second peripheral region;
• first teeth having first faces and disposed in the first peripheral region of the coupling housing;
• second teeth having second faces and disposed in the second peripheral region of the coupling component, wherein the first teeth are engaging with the second teeth of the coupling component, and wherein the first teeth are movable in relation to the second teeth and vice versa;
• an annular disc-shaped support cover protecting the first teeth at their first faces and protecting the second teeth
• at their second faces between the coupling housing and the coupling component;
• an axial corrugated pipe positioned between the coupling housing and the coupling component and secured to a member of the group selected from coupling component and coupling housing for sealing, the first teeth and the second teeth within a fluid chamber, for preventing fluid loss, for preventing gear tooth contamination and to perform as a biasing means.